Display Panel Heating Wires With Zoned Resistance for Temperature Uniformity
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Solution Overview
Problem
Liquid crystal display devices face issues with slow response speed and crystallization at low temperatures due to increased viscosity of liquid crystal materials, and existing heating solutions do not provide an ideal heating effect, leading to temperature inconsistencies and reliability issues.
Innovation Solution
A display panel with heating wires in both the display and non-display regions, where the resistance of heating wires in the non-display region is higher than in the display region, to enhance heating and maintain consistent temperatures across the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating wires with uniform resistance are used across the display panel, then the heating structure is simple, but the temperature distribution becomes inconsistent with the non-display region being cooler
Solution Approach 1:
The patent applies local quality by making the heating wires have different resistance values in different regions. Specifically, the heating wires in the non-display region have higher resistance than those in the display region, creating localized heating characteristics that match the different thermal requirements of each region. This resolves the temperature consistency issue without requiring overly complex heating control systems.
Solution Approach 2:
The patent changes the resistance parameter of the heating wires based on their location. By adjusting the resistance value of heating wires in different regions (higher in non-display region, lower in display region), the patent optimizes the heating effect and achieves uniform temperature distribution across the entire display panel while maintaining a relatively simple heating structure.
2Reliability
If heating wires with higher resistance are used in the non-display region, then the heating effect in the non-display region is enhanced, but the overall energy consumption increases
Solution Approach 1:
The patent applies local quality by differentiating the heating wire resistance in the non-display region from that in the display region. The higher resistance in the non-display region compensates for its faster heat dissipation, ensuring adequate heating effect in this region without requiring excessive energy input across the entire panel, thus optimizing overall energy consumption.
Solution Approach 2:
The patent implements a feedback mechanism where the heating wire resistance is designed based on the thermal characteristics and heat dissipation rates of different regions. This pre-calculated resistance distribution acts as a form of feedback optimization, ensuring that each region receives appropriate heating without waste, balancing heating effectiveness with energy efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures consistent heating across the display panel, improving the reliability and normal operation of liquid crystal display devices by addressing temperature inconsistencies and enhancing the heating effect in the non-display region.
Implementation Method 1
multiple heating wires located in the display region and the non-display region. In the same area, the resistance of heating wires located in the non-display region is higher than the resistance of heating wires located in the display region
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes a display region and a non-display region. At least part of the non-display region is configured to be attached to a backlight module. The display panel also includes multiple heating wires located in the display region and the non-display region. In the same area, the resistance of heating wires located in the non-display region is higher than the resistance of heating wires located in the display region.